Money is a big factor, but it is the federal / state governments who should back the reforms and foot the bill rather than the PDs themselves. The government always seems very slow to move on new policy / reform (unless it's something that restricts rights or gives police ADDITIONAL powers).

Guess who controls there things? Its the politicians you vote into office

The evidence was there in this case, but as others have pointed out, there have been too many instances of police getting slaps on the wrist or early retirement for other clear police assaults or worse caught on tape.

No disagreement here.

We rely on the system to prosecute the guilty but police have been seen to be one of the special groups of people who get all sorts of leeway in the eyes of the law. Not to mention, police CONTROL evidence which can be conveniently 'lost' or become otherwise invalid prior to trials which could potentially detriment police forces.

Sometimes it's honest mistakes in the line of duty which they are protected from by law, sometimes it's pure stupidity and inhumane ways of dealing with things. Sometimes there is no evidence of misconduct sometimes there is but cops mess with it I don't disagree with that. Like I said in my other responses as time goes on, policies will change and technology will develop you will see a change(that being less misconduct or more punishment for cops for misconduct) but it's not gonna happen tomorrow or in 6 months or in a year or in 3 years but my prediction is like 5-10 years. By that time there is gonna be a new wave of cops who are actually very well aware of these issues and with the way society is going they are going to be more tolerant of people of other ethnicities, new policies and new technology will be in place enabling people to see if cops are committing crimes or the cameras will stop them from doing fucked up shit, things will be different but like I said it will take time.